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首页> 外文期刊>International Journal of Natural and Engineering SciencesbElectronic resource >Investigation of Cutting Parameters of Drilling Ti6Al4V Using Finite Element Analysis
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Investigation of Cutting Parameters of Drilling Ti6Al4V Using Finite Element Analysis

机译：Ti6Al4V钻削切削参数的有限元分析

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摘要

The high strength, low weight ratio and outstanding corrosion resistance of Ti6Al4V led to wide range of applications which demand high levels of reliable performance in aerospace, automotive, chemical plant, power generation and other major industries. Ti6Al4V also has numerous applications in the medical industry. The biocompatibility of Ti6Al4V is excellent, especially when direct contact with tissue or bone is required. However, these alloys are notoriously difficult to machine owing to several inherent properties of the material. Drilling is one of the most widely used machining technique in industry and there are lots of studies to investigate in both academic and industrial area. Predictions of important process variables such as temperature, cutting forces and stress distributions play significant role on designing tool geometries and optimizing cutting conditions. Researchers find these variables by using experimental techniques which are time consuming and expensive. As an alternative, Finite Element Modelling (FEM) becomes main solution. Heat generation during a drilling process has a major influence on the tool life and workpiece material behavior that are significantly affected by cutting conditions (cutting speed, feed rate). In this study, the effect of cutting conditions on temperature generated in drilling process was investigated by means of finite element simulations using DEFORM-3D. Variation of temperature on Ti6Al4V workpiece was examined with respect to change in feed rate (0.2, 0.3, 0.4 mm/rev) and cutting speed (2000, 3000 rpm) cutting conditions. In all of these simulations, workpiece material has 1 mm height, 2 mm radius cylindrical shape and 10 mm length WC drill bit, designed using Catia program, were used.
机译：Ti6Al4V的高强度，低重量比和出色的耐腐蚀性导致了广泛的应用，这些应用要求在航空航天，汽车，化工厂，发电和其他主要行业中具有高水平的可靠性能。 Ti6Al4V在医疗行业中也有许多应用。 Ti6Al4V的生物相容性极佳，尤其是在需要与组织或骨骼直接接触的情况下。然而，由于材料的一些固有特性，众所周知这些合金很难加工。钻削是工业上使用最广泛的加工技术之一，在学术和工业领域都有大量的研究需要调查。重要工艺变量（例如温度，切削力和应力分布）的预测在设计刀具几何形状和优化切削条件方面起着重要作用。研究人员通过使用费时且昂贵的实验技术来找到这些变量。作为替代方案，有限元建模（FEM）成为主要解决方案。钻孔过程中产生的热量对切削寿命（切削速度，进给速度）有显着影响的刀具寿命和工件材料性能具有重大影响。在这项研究中，通过使用DEFORM-3D进行有限元模拟，研究了切削条件对钻孔过程中产生的温度的影响。根据进给速度（0.2、0.3、0.4 mm / rev）和切削速度（2000、3000 rpm）切削条件的变化检查了Ti6Al4V工件上的温度变化。在所有这些模拟中，使用了由Catia程序设计的工件材料，其高度为1 mm，半径为2 mm，圆柱形状为10 mm，长度为WC。

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